Choose the best option (A, B, C or D) to complete the following sentence.

She sustained severe head _______ after being thrown from her horse.

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The AIDS _______ continues to spread around the world. Up to 4,000 people are infected with the HIV virus every single day.

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During World War II, the Red Cross organized relief assistance for _______ and wounded soldiers and administered the exchange of messages regarding prisoners and missing persons.

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A _______ is a very large wave, often caused by an earthquake, that flows onto the land and destroys things.

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By the end of World War II, 179 _______ of the Red Cross had conducted 12,750 visits to POW (prisoner of war) camps in 41 countries.

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One of the core tasks of the Red Cross is to organize nursing and _____ for those who are wounded on the battlefield.

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The International Red Cross and Red Crescent _______ occurs once every four years.

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The mission of the Red Cross is also to supervise the _______ of prisoners of war.